Can visible light excite electrons?

[LogicalAcid]

If so, then that means they can cause things to warm up right?

 

[cragar]

yes this can happen . The electron can absorb the visible photon.
And you can have other things like Compton scattering.

 

[LogicalAcid]

yes this can happen . The electron can absorb the visible photon.

Then turns it into enegy, exites the electrons, and emits another photon of the same frequency

 

[cragar]

It doesn't necessarily have to re-emit the photon depends on the material.

 

[LogicalAcid]

It doesn't necessarily have to re-emit the photon depends on the material.

"Depends on the material" ?

 

[cragar]

like glass is transparent so the photons pass through the glass get absorbed and re-emitted among other thing, I think there is a faq on this , Or if i had a black body it would want to absorb most of the incoming light and it would heat up.

 

[Subductionzon]

Good old fashioned film photography relies on visible light causing a chemical reaction to occur. When viewed at a quantum level it is exciting an electron in the silver compounds involved.

 

[fatra2]

Hi there,

Another example of what you are looking for, is fluorescence: http://en.wikipedia.org/wiki/Fluorescence.

Cheers

 

[LURCH]

If so, then that means they can cause things to warm up right?

except in the case o fphotovoltaics, when the energy is also converted into ellectrical energy.